Description: An extremely bright light in the sky caused us to pull to the side of the road. There were two lights moving vertically , quicker than any plane could, with very bright lights that illuminated a large portion of the sky. As it rose silently up, the object went behind the clouds but the light continued reflecting on the clouds surrounding the UFO making it's upward movement indisputable. Just as we were shitting ourselves and exclaiming it must be alien, the lights shut off and one small red and one small green light appeared where the previous lights had been. The craft then started making airplane flight sounds and flew slowly, horizontally across the sky as any other plane would. Disguise? I think so. All five people in the car agreed that we had never seen any plane/helicopter that could rise so smoothly and quickly, nor any plane with a light as bright as that one.